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No.

Name

Operation

Cycle

Remarks

1

Transport roller

Cleaning

80K

2

Paper feed guide

Cleaning

80K

3

Paper feed roller

Check

*

80K

Replacement period (80K or 2 years)

4

Reversion roller

Check

*

80K

Replacement period (80K or 2 years)

5

Hitching roller

Check

*

80K

Replacement period (80K or 2 years)

6

Torque limiter

Check

*

80K

Replacement period (80K or 2 years)

8 – 2

Trouble

code

Trouble

Remarks

Trouble

detection

U6

09 

LCC lift motor trouble

—

LCC

20

LCC communication trouble

—

PCU

21

LCC transport motor trouble

—

LCC

22

LCC 24V power trouble

—

LCC

Trouble

code

Details of trouble

U6

09

Content

LCC lift motor trouble

Detail 

LCC lift motor trouble

Cause

Sensor defective
LCC control PWB defective
Gear broken
Lift motor defective

Check and
remedy

Check sensor operation with SIM4-2.
Check lift motor operation with
SIM4-3.

20

Content

LCC communication trouble

Detail

Communication trouble with LCC
Error at communication line test
when power is turned on or leaving
SIM.

Cause

Connector: Defective connection of
harness or broken wire
LCC control PWB defective
Control PWB (PCU) defective
Control PWB (PCU) defective
Malfunction due to noise

Check and
remedy

Can be reset by turning on and off
power supply.
Check communication line connector
and harness.

21

Content

LCC transport motor trouble

Detail

LCC transport motor operation
trouble

Cause Motor 

lock

Motor speed error
Overcurrent to motor
LCC control PWB defective

Check and
remedy

Check transport motor operation with
SIM4-3.

22

Content 

LCC24V power supply error

Detail

No power supply (24V) to LCC

Cause

Connector: Harness connection
defective or broken wire
LCC control PWB defective
Power supply unit defective

Check and
remedy

Check power supply line connector
and harness.
Check for 24V at power supply unit
and LCC control PWB

*

Displayed on the control panel of the copier

If a trouble occurs, check the cause of the trouble using the following
flow charts.

N: No       Y: Yes

N

Y

N

Y

N

Y

N

A

F

Y

D

B

Is interface

harness properly

connected?

+5V between

CN-B-7 and 8 of

control PWB?

+24V between

CN-B9 and 10 of

control PWB?

Ready state after

setting paper?

Connect properly.

Check and if necessary

replace harness.

Check and if necessary

replace harness.

9 – 1

N

Y

N

Y

N

Y

N

Y

N

Y

N

Y

Y

N

B

D

Is fuse blown out?

Is load on motor

shaft normal?

Is upper limit

sw on paper feed

UN turned on?

Is harness

connected properly?

Does motor rotate

even slightly?

Is motor

encoder sensor

output normal?

Replace fuse.

Check mechanical load

and driving system, and

remove any foreign matter.

Lower tray until upper

limit switch turns off.

Connect harness properly.

Check harness and if

necessary replace.

Is voltage

applied to motor

connector?

Check and if necessary

replace motor.

Check and if necessary

replace control PWB.

C

N

Y

N

Y

N

Y

N

Y

Y

N

Is load on motor

shaft normal?

Is harness

connected properly?

Does motor rotate

even slightly?

Is motor encoder

output normal?

Is voltage applied to

motor connector?

Check and if necessary

replace motor.

Check and if necessary

replace control PWB.

Connect harness properly.

    Check and if necessary

replace harness.

Check mechanical load

and driving system, and

remove any foreign matter.

D

N

Y

Check for

sensor mounting.

Is harness connected

properly?

Replace control PWB.

Check mounting and if

necessary replace harness.

9 – 2

N

Y

N

Y

N

Y

E

Is each load

properly installed?

Conductivity

between coils of

each load?

Conductivity

between connectors

and terminals?

Replace control PWB.

Check mounting and if

necessary replace.

Replace clutch or solenoid.

Check and if necessary

replace harness.

N

Y

G

N

Y

N

Y

N

Y

Y

N

N

Y

Y

D

Is improper

paper used?

Foreign matter

in paper path?

Is transfer

sensor normal?

Sheets are fed

one by one?

Replace

control PWB.

Use specified

paper.

Remove foreign

matter.

Is paper feed

unit properly

assembled?

Is separation

roller contaminated

with paper

dust?

Replace

separation roller.

Check paper

feed unit and if

necessary

replace.

Clean.

N

Y

N

Y

N

Y

N

Y

N

Y

F

C

E

E

Is paper feed

rollers contaminated

with paper dust?

Does roller rotate?

Does pick-up

roller drop at paper

feeding?

Does

pick-up roller

rotate in paper feed

direction at paper

feeding?

Is improper

paper used?

Replace control PWB.

Check mechanical load and

driving system. Remove any

foreign matter and clean.

Use specified paper.

9 – 3